逻辑主语:是非谓语动词动作的执行者或承受者;它们在逻辑上存在着主谓关系或动宾关系,但不能直接作非谓语动词的主语,因此叫逻辑主语。
逻辑主语的判断:
1. 句子主语就是非谓语动词的逻辑主语,它们之间是逻辑上的主谓关系或动宾关系。例如:
She likes helping others .(she 就是 helping 的逻辑主语)
Moved by my words, her father told me the truth. (her father 是 moved 的逻辑主语)
2. 介词of 或for的宾语就是非谓语动词的逻辑主语。例如:
It”s kind of you to tell me the news . (you 是to tell 的逻辑主语)
这个句子中,it是形式主语,句子的真正主语是to tell me the news.
It is impossible for you to finish so much work in so short a time . (you 是to finish 的逻辑主语)
3. 复合结构中的宾语就是非谓动词的逻辑主语。例如:
The doctor asked me to answer her question. (me 是to answer 的逻辑主语)
I saw him playing at the river side. (him 是playing 的逻辑主语)